Using XPath to filter HTML by class value

Question

I'm fetching an a HTML page and try to get some of it's content to show it in a table view. Following the documentation I tried NSXMLDocument and NSXmlParser but could not get any of them to give me the right data back :-(

The page I'm trying to scrap is http://www.instapaper.com/u

The code I'm using is

NSXMLDocument * doc = [[NSXMLDocument alloc]
                        initWithXMLString: data
                        options: NSXMLDocumentTidyHTML
                        error: &error];
NSArray* rows = [doc nodesForXPath:@"//div[class='tableViewCell']" error:&error];

to get DIVs with class=tableViewCell.

If I only search for //div I get back a lots of them, but filtering by class seems not to be working :-(

Any idea what I'm doing wrong?

Thanks for any help, Miguel

Possible duplicate of How can I find an element by CSS class with XPath? — siegi
– siegi, Commented Sep 17, 2017 at 10:25

Dennis Münkle · Accepted Answer · 2010-10-14 09:09:49Z

13

I guess you are trying to filter by the class attribute? then you would need to add an @ to your xpath:

//div[@class='tableViewCell']

yet, i cannot find a div having this class?

answered Oct 14, 2010 at 9:09

Dennis Münkle

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3 Comments

Michi Over a year ago

Thanks a lot Dennis. I thought I did try it this way... but it seems I did something wrong when I did. Now it works perfectly :-)

Michi Over a year ago

One further question... how would I do if the class attribute value is "tableViewCell someOtherClassValue"? Right now it only gives me back the nodes which only have tableViewCell as value.

Dennis Münkle Over a year ago

you could use //div[contains(string(@class),"tableViewCell")]

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